Traffic signal sound monitor

Details Traffic signal sound monitor Traffic signal sound monitor

1994-09-27

1998-07-21

Hofsass, Jeffery

Communications: electrical

Vehicle detectors

340436, 340902, 340906, 36442404, G08G 100

Patent

active

057840075

ABSTRACT:
A means for recording the status of a traffic regulating device upon the occurrence of a vehicle collision. Sounds are detected by microphone (10), register on decibel meter (20) and are input to microprocessor (40). The microprocessor (40) simultaneously inputs data from a clock (30) and a signal monitor (50) which continuously reads the status of the lamps of the traffic signal (60). The microprocessor (40) continuously calculates the duration of status of each lamp of the traffic signal (e.g., how long the red light has been "on"). If the sound level registering on the decibel meter (20) exceeds a certain threshold, the microprocessor (40) then transmits the time, lamp status and duration of the lamp status to the hard disk (70), which records this data. Said data can be retrieved from the hard disk (70) by using the keyboard (80) to input a request to the microprocessor (40) which will output the data to the television monitor display (90). Thus, knowing the status of the traffic lamps and the duration of that status, an investigator can determine which vehicle involved in the collision entered the intersection while facing a red light, causing the collision.

REFERENCES:
patent: 3866165 (1975-02-01), Maronde et al.
patent: 3895344 (1975-07-01), Gill, Jr. et al.
patent: 3992656 (1976-11-01), Joy
patent: 4279027 (1981-07-01), Van Sloun
patent: 4759069 (1988-07-01), Bernstein et al.
patent: 4775865 (1988-10-01), Smith et al.
patent: 4806931 (1989-02-01), Nelson
patent: 4864297 (1989-09-01), Shaw et al.
patent: 5446659 (1995-08-01), Yamawaki

Affiliated with

Also associated with

Rating

Traffic signal sound monitor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Traffic signal sound monitor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Traffic signal sound monitor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1650340